Utilization and fairness in spectrum assignment for opportunistic spectrum access
نویسندگان
چکیده
منابع مشابه
Utilization and fairness in spectrum assignment for opportunistic spectrum access
The Open Spectrum approach to spectrum access can achieve near-optimal utilization by allowing devices to sense and utilize available spectrum opportunistically. However, a naive distributed spectrum assignment can lead to significant interference between devices. In this paper, we define a general framework that defines the spectrum access problem for several definitions of overall system util...
متن کاملReciprocally opportunistic spectrum access
The problem of opportunistic spectrum access in cognitive radio networks (CRNs) is considered in this paper. Especially, we discuss designing distributed learning protocols for non-cooperative secondary users (SUs) to efficiently utilize the spectrum opportunities. It is well known that the SUs’ selfish behaviors will result in a network collapse. Each SU is thus enabled to form conjectures ove...
متن کاملDynamic Spectrum Sharing by Opportunistic Spectrum Access with Spectrum Aggregation
The rapid growth of wireless services and the breakneck proliferation of wireless devices continue to strain limited spectrum resource. While the need for efficient spectrum sharing mechanisms has been emphasised, opportunistic spectrum access has been considered as a promising mechanism for dynamic spectrum sharing. However, although the idle spectrum could exist, it is usually rather fragment...
متن کاملOpportunistic Spectrum Access in Imperfect Spectrum Sensing Cognitive Networks
—Spectrum sensing strategy is key to realize cognitive radio. However, spectrum sensing error would affect the access strategy of secondary users in cognitive networks. This paper addresses the spectrum sensing strategy under imperfect spectrum sensing, and proposes opportunistic spectrum access strategies for the imperfect spectrum sensing and fading channels respectively. By setting the opti...
متن کاملAn Efficient Spectrum Decision Scheme in Opportunistic Spectrum Access Networks
In this paper, we propose and compare two spectrum decision schemes namely; Adaptive Spectrum Decision (ASD) and Maximum Remaining Lifetime (MRL). The simulation results and performance analysis such as channel utilization, data delivery, and spectrum handoff rate are evaluated and compared. The results obtained that ASD has great performance in comparison with MRL scheme. KeywordsSpectrum deci...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Mobile Networks and Applications
سال: 2006
ISSN: 1383-469X,1572-8153
DOI: 10.1007/s11036-006-7322-y